PHP 8 Deprecated issues

[PhilETaylor]

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255	  <br />
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256	  <b>Deprecated</b>:  preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in <b>/tests/www/postgres/libraries/vendor/joomla/database/src/Pgsql/PgsqlDriver.php</b> on line <b>273</b><br />
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257	  <br />
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258	  <b>Deprecated</b>:  preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in <b>/tests/www/postgres/libraries/vendor/joomla/database/src/Pgsql/PgsqlDriver.php</b> on line <b>279</b><br />
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259	  <br />
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260	  <b>Deprecated</b>:  preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in <b>/tests/www/postgres/libraries/vendor/joomla/database/src/Pgsql/PgsqlDriver.php</b> on line <b>273</b><br />
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261	  <br />
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262	  <b>Deprecated</b>:  preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in <b>/tests/www/postgres/libraries/vendor/joomla/database/src/Pgsql/PgsqlDriver.php</b> on line <b>279</b><br />
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263	  <br />
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264	  <b>Deprecated</b>:  preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in <b>/tests/www/postgres/libraries/vendor/joomla/database/src/Pgsql/PgsqlDriver.php</b> on line <b>273</b><br />
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265	  <br />
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266	  <b>Deprecated</b>:  preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in <b>/tests/www/postgres/libraries/vendor/joomla/database/src/Pgsql/PgsqlDriver.php</b> on line <b>279</b><br />
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267	  <br />
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268	  <b>Deprecated</b>:  preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in <b>/tests/www/postgres/libraries/vendor/joomla/database/src/Pgsql/PgsqlDriver.php</b> on line <b>273</b><br />
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269	  <br />
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270	  <b>Deprecated</b>:  preg_match(): Passing null to parameter #2 ($subject) of type string is deprecated in <b>/tests/www/postgres/libraries/vendor/joomla/database/src/Pgsql/PgsqlDriver.php</b> on line <b>279</b><br />
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271	  <br />
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[richard67]

@wilsonge Haven't these deprecated noticed handled in this issue here been solved with #259 ? If so: Would it make sense to create a new tag so we can fetch the changes into the CMS with a composer update?